Petunia plant named ‘Balsunbur’

ABSTRACT

A new and distinct cultivar of  Petunia  plant named ‘Balsunbur’, characterized by its burgundy-colored flowers, medium green-colored foliage, and vigorous, mounded-trailing growth habit, is disclosed.

Latin name of genus and species of plant claimed: Petunia×hybrida.

Variety denomination: ‘Balsunbur’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Petunia plant botanically known as Petunia×hybrida and hereinafter referred to by the cultivar name ‘Balsunbur’.

The new cultivar originated in a controlled breeding program in Arroyo Grande, Calif. during October 2004. The objective of the breeding program was the development of Petunia cultivars with single type flowers, unique flower coloration, and a vigorous, mounded-trailing growth habit.

The new Petunia cultivar is the result of cross-pollination. The female (seed) parent of the new cultivar is the proprietary Petunia×hybrida breeding selection designated 2840-1, not patented, characterized by its dark burgundy-colored flowers, medium green-colored foliage, and moderately vigorous, semi-upright growth habit. The male (pollen) parent of the new cultivar is Jamboree Burgundy ‘Jam Burg’, U.S. Plant Pat. No. 14,346, characterized by its dark burgundy-colored flowers, medium green-colored foliage, and moderately vigorous, compact growth habit. The new cultivar was discovered and selected as a single flowering plant within the progeny of the above stated cross-pollination during July 2005 in a controlled environment at Arroyo Grande, Calif.

Asexual reproduction of the new cultivar by terminal stem cuttings since July 2005 at Arroyo Grande, Calif. and West Chicago, Ill. has demonstrated that the new cultivar reproduces true to type with all of the characteristics, as herein described, firmly fixed and retained through successive generations of such asexual propagation.

SUMMARY OF THE INVENTION

The following characteristics of the new cultivar have been repeatedly observed and can be used to distinguish ‘Balsunbur’ as a new and distinct cultivar of Petunia plant:

-   -   1. Burgundy-colored flowers;     -   2. Medium green-colored foliage; and     -   3. Vigorous, mounded-trailing growth habit.

Plants of the new cultivar differ from plants of the female parent primarily in flower size, leaf size, and growth habit. The new cultivar has a larger flower, smaller leaf and a more trailing growth habit than plants of the female parent.

Of the many commercially available Petunia cultivars, the most similar in comparison to the new cultivar is the male parent Jamboree Burgundy ‘Jam Burg’, U.S. Plant Pat. No. 14,346. However, in side by side comparisons, plants of the new cultivar differ from plants of ‘Jam Burg’ in at least the following characteristics:

-   -   1. Plants of the new cultivar have a lower surface petal color         different from plants of ‘Jam Burg’;     -   2. Plants of the new cultivar have longer peduncles than plants         of ‘Jam Burg’; and     -   3. Plants of the new cultivar have a petal apex different from         plants of ‘Jam Burg’.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs show, as nearly true as it is reasonably possible to make the same in color illustrations of this type, typical flower and foliage characteristics of the new cultivar. Colors in the photographs differ slightly from the color values cited in the detailed description, which accurately describes the colors of ‘Balsunbur’. The plants were grown in 4.5 inch pots for 11 weeks in a greenhouse at West Chicago, Ill.

FIG. 1 illustrates a side view of the overall growth and flowering habit of ‘Balsunbur’.

FIG. 2 illustrates a close-up view of an individual flower of ‘Balsunbur’.

DETAILED BOTANICAL DESCRIPTION

The new cultivar has not been observed under all possible environmental conditions to date. Accordingly, it is possible that the phenotype may vary somewhat with variations in the environment, such as temperature, light intensity, and day length, without, however, any variance in genotype.

The chart used in the identification of colors described herein is The R.H.S. Colour Chart of The Royal Horticultural Society, London, England, 2001 edition, except where general color terms of ordinary significance are used. The color values were determined in July 2009 under natural light conditions in West Chicago, Ill.

The following descriptions and measurements describe plants produced from cuttings from stock plants and grown in a glass-covered greenhouse under conditions comparable to those used in commercial practice. The plants were grown at West Chicago, Ill. in 4.5 inch pots for 11 weeks utilizing a soilless growth medium. Greenhouse temperatures were maintained at approximately 70° F. to 77° F. (21° C. to 25° C.) during the day and approximately 65° F. to 68° F. (18° C. to 20° C.) during the night. Greenhouse light levels of 2,500 footcandles to 6,000 footcandles were maintained during the day. Measurements and numerical values represent averages of typical plants.

-   Botanical classification.—Petunia×hybrida cultivar Balsunbur. -   Parentage:     -   -   Female parent.—Proprietary Petunia×hybrida breeding             selection designated 2840-1, not patented.         -   Male parent.—Jamboree Burgundy ‘Jam Burg’, U.S. Plant Pat.             No. 14,346. -   Propagation:     -   -   Type cutting.—Terminal stem.         -   Time to initiate roots.—Approximately 6 to 9 days.         -   Time to produce a rooted cutting.—Approximately 21 to 28             days.         -   Root description.—Fibrous.         -   Rooting habit.—Freely branching. -   Plant description:     -   -   Commercial crop time.—Approximately 6 to 8 weeks from a             rooted cutting to finish in a 10 cm pot.         -   Growth habit and general appearance.—Vigorous,             mounded-trailing.         -   Size.—Height from soil level to top of plant plane:             Approximately 16.3 cm. Width: Approximately 48.6 cm.         -   Branching habit.—Freely branching, pinching improves basal             branching. Quantity of main branches per plant:             Approximately 5.         -   Branch.—Strength: Moderate. Length: Approximately 29.4 cm.             Diameter: Approximately 3.0 mm. Length of central internode:             Approximately 2.8 cm. Texture: Densely glandular pubescent             with a mixture of long and short length hairs. Gland color:             Colorless. Color of young and mature stems: 144A. -   Foliage description:     -   -   General description.—Quantity of leaves per main branch:             Approximately 18. Fragrance: Slight. Form: Simple.             Arrangement on flowering stem: Opposite.         -   Leaves.—Aspect: Perpendicular to acute angle to stem. Shape:             Ovate. Margin: Entire. Apex: Acute. Base: Attenuate.             Venation pattern: Pinnate. Length of mature leaf:             Approximately 5.8 cm. Width of mature leaf: Approximately             3.0 cm. Texture of upper and lower surfaces: Moderately             glandular pubescent. Gland color: Colorless. Color of upper             surface of young foliage: 137C with venation of 144B. Color             of lower surface of young and mature foliage: 138B with             venation of 144B. Color of upper surface of mature foliage:             137A with venation of 144B.         -   Petiole.—Length: Approximately 5.0 mm. Width: Approximately             2.0 mm. Texture: Densely glandular pubescent with a mixture             of long and short length hairs. Gland color: Colorless.             Color: 144B. -   Flowering description:     -   -   Flowering habit.—‘Balsunbur’ is freely flowering under             outdoor growing conditions with substantially continuous             blooming from spring through autumn and year-round in             greenhouse environment.         -   Lastingness of individual flower on the plant.—Approximately             10 to 12 days. -   Flower description:     -   -   General description.—Type: Simple, salverform. Quantity per             plant: Approximately 19. Fragrance: Slight.         -   Bud.—Rate of opening: Generally takes 2 to 3 days for bud to             progress from first color to fully open flower. Quantity per             plant: Approximately 8.         -   Bud just before opening.—Shape: Oblong. Length:             Approximately 4.9 cm. Diameter at apex: Approximately             7.0 mm. Diameter at base: Approximately 3.0 mm. Texture:             Densely glandular pubescent. Gland color: Colorless. Color             of petals: 79B with venation of N77A. Color of tube: N77B             with venation of N77A.         -   Corolla.—Diameter: Approximately 6.5 cm.         -   Petals.—Quantity: 5, fused to form a tube. Shape: Obovate.             Appearance: Velvety. Margin: Entire, wavy. Apex: Rounded.             Length from tube: Approximately 3.1 cm. Length of free             portion: Approximately 1.1 cm. Width: Approximately 3.4 cm.             Texture of upper surface: Glabrous. Texture of lower             surface: Sparsely glandular pubescent. Color of upper             surface when first and fully open: Darker than and more             purple than N74A; venation of N92A. Color of lower surface             when first and fully open: 77B with areas of 79C nearest             venation; venation of N77A.         -   Corolla tube.—Length: Approximately 3.8 cm. Diameter at             distal end: Approximately 1.0 cm. Diameter at proximal end:             Approximately 3.0 mm. Texture of inner surface: Glabrous.             Texture of outer surface: Densely glandular pubescent. Gland             color: Colorless. Color of inner surface: 79A with venation             of N92A. Color of outer surface: 79C with venation of N77A.         -   Sepals.—Quantity per flower: 5, fused at base. Shape:             Linear. Apex: Acute. Length: Approximately 2.2 cm. Width:             Approximately 2.0 mm. Texture of upper and lower surfaces:             Densely glandular pubescent. Color of upper surface: 137A             transitioning to 144A at base. Color of lower surface: 137C             transitioning to 144A at base.         -   Peduncle.—Strength: Strong. Aspect: Acute angle to stem.             Length: Approximately 3.5 cm. Diameter: Approximately             2.0 mm. Texture: Densely glandular pubescent with a mixture             of long and short length hairs. Gland color: Colorless.             Color: 144A often with a faint overlay of 187B nearest             flower attachment.         -   Reproductive organs.—Androecium: Stamen quantity: 5,             basifixed. Stamen length: Approximately 2.6 cm. Filament             length of fixed portion: Approximately 1.1 cm. Filament             color: 155D with an overlay of N79D. Anther shape: Bilobed.             Anther length: Approximately 1.0 mm. Anther color: N92C.             Pollen amount: Abundant. Pollen color: 93D. Gynoecium:             Pistil quantity: 1 per flower. Pistil length: Approximately             2.8 cm. Stigma shape: Funnel. Stigma length: Approximately             2.0 mm. Stigma color: N92A. Style length: Approximately             2.3 cm. Style color: 145B with an overlay of N79D toward             stigma. Ovary length: Approximately 3.0 mm. Ovary color:             144A. -   Seed and fruit production: Neither seed nor fruit production has     been observed. -   Disease and pest resistance: Resistance to pathogens and pests     common to Petunia has not been observed. 

1. A new and distinct cultivar of Petunia plant named ‘Balsunbur’, substantially as herein shown and described. 